Greddy 60mm air fuel gauge instructions
02-16-2006, 01:36 PM
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Re: Greddy 60mm air fuel gauge instructions
2. Installation Method:
Disconnect the negative battery terminal.
Wiring Diagram
Sensor Harness
Red - switched ignition +12v
Black - chassis ground
Green - output signal from sensor to ecu (only if factory sensor is removed)
Power Harness
Red - Constant +12v
Orange - switched ignition +12v
White - Parking light +12v
Black - chassis ground
Yellow - Warning option ground signal
If outputing O2 signal to the ecu is desired, the gauge must be powered.
Solder and insulate all connections.
Reconnect the negative battery terminal.
Disconnect the negative battery terminal.
Wiring Diagram
Sensor Harness
Red - switched ignition +12v
Black - chassis ground
Green - output signal from sensor to ecu (only if factory sensor is removed)
Power Harness
Red - Constant +12v
Orange - switched ignition +12v
White - Parking light +12v
Black - chassis ground
Yellow - Warning option ground signal
If outputing O2 signal to the ecu is desired, the gauge must be powered.
Solder and insulate all connections.
Reconnect the negative battery terminal.
02-16-2006, 01:43 PM
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Re: Greddy 60mm air fuel gauge instructions
3. Operation Method
Meter operation
Ignition power off - the needle points to 16.0 A/F and the LED is not lit.
Ignition power on with engine on or off - During cold starts, the sensor is not warmed up yet, the "bad connection check function" will activate, but as the sensor warms up it will change to the normal "warm up mode"
Engine on - After the "warm up mode" is over, (the gauge will show the current A/F ratio) the needle should point to a value close to 14.6 A/F during idle.
Engine on during acceleration and full throttle - When the neddle moves below the 14.6 A/F (towards 8.0 A/F) it is showing a richer reading.
Engine on during deacceleration and downshifts - when the needle moves above the 14.6 A/F (towards 16.0 A/F) it is showing a leaner reading. (under hard deacceleration, when downshifting the unit may activate the "Short Circuit Function", but as soon as you begin to accel again, the check lamp should turn off.
Meter operation
Ignition power off - the needle points to 16.0 A/F and the LED is not lit.
Ignition power on with engine on or off - During cold starts, the sensor is not warmed up yet, the "bad connection check function" will activate, but as the sensor warms up it will change to the normal "warm up mode"
Engine on - After the "warm up mode" is over, (the gauge will show the current A/F ratio) the needle should point to a value close to 14.6 A/F during idle.
Engine on during acceleration and full throttle - When the neddle moves below the 14.6 A/F (towards 8.0 A/F) it is showing a richer reading.
Engine on during deacceleration and downshifts - when the needle moves above the 14.6 A/F (towards 16.0 A/F) it is showing a leaner reading. (under hard deacceleration, when downshifting the unit may activate the "Short Circuit Function", but as soon as you begin to accel again, the check lamp should turn off.
02-16-2006, 01:46 PM
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Re: Greddy 60mm air fuel gauge instructions
3a. Operation Method
Gauge Diagram
Memory Switch: used to change between hold mode to peak mode
Memory LED: Indicates when in warm up mode, overheat mode, or peak mode
Warning Switch: Used to change into warning setting mode. Also used to change the warning point value.
Warning LED: Indicates when warm up mode, overheat mode, warning mode, or short circuit. Illuminates when in warning mode.
Gauge Diagram
Memory Switch: used to change between hold mode to peak mode
Memory LED: Indicates when in warm up mode, overheat mode, or peak mode
Warning Switch: Used to change into warning setting mode. Also used to change the warning point value.
Warning LED: Indicates when warm up mode, overheat mode, warning mode, or short circuit. Illuminates when in warning mode.
02-16-2006, 01:53 PM
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Re: Greddy 60mm air fuel gauge instructions
3b. Operation method
Warm up Mode
With the needle location and LED flashing pattern, you can monitor the warm up procedure.
When cold, the "connection failure check function" will activate. As the O2 sensor warms up, the unit will return to normal operation. (This is not a system error.)
- Warm up 0-50% - The needle will point to 15.0 A/F. The memory LED and warning LED will flash simultaneously.
- Warm up 50-80% - The needle will pont to 13.0 A/F The memory LED and warning LED will flash simultaneously.
- Warm up 80-100% - The gauge will begin to display the current A/F ratio. The memory LED and warning LED will flash simultaneously.
- Full warm - The gauge will now showthe current A/F ratio and will now be in real mode. The memory LED and warning LED will not be lit.
Until the O2 sensor is fully warmed up, the needle will be unstable.
Warm up Mode
With the needle location and LED flashing pattern, you can monitor the warm up procedure.
When cold, the "connection failure check function" will activate. As the O2 sensor warms up, the unit will return to normal operation. (This is not a system error.)
- Warm up 0-50% - The needle will point to 15.0 A/F. The memory LED and warning LED will flash simultaneously.
- Warm up 50-80% - The needle will pont to 13.0 A/F The memory LED and warning LED will flash simultaneously.
- Warm up 80-100% - The gauge will begin to display the current A/F ratio. The memory LED and warning LED will flash simultaneously.
- Full warm - The gauge will now showthe current A/F ratio and will now be in real mode. The memory LED and warning LED will not be lit.
Until the O2 sensor is fully warmed up, the needle will be unstable.
02-16-2006, 02:07 PM
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Re: Greddy 60mm air fuel gauge instructions
3c. Operation Method
Sensor - Vehicle Adjustment
After the wiring is complete, turn on the ignition power, and press hold the select switch on the data link unit for two seconds.
The use the select switch to toggle from the four different adjustments.
- The unit comes preset for 9.0 A/F
- If the outside temperature is below 59degrees F, you should start with setting 13.0 or 15.0
- Because the exhaust temperatur will vary according to the vehicle's specifications and conditions (level of modifications, race vehicle, high boost and exhaust pressure, and high rpm range) you may have to try a different setting to achive a steady needle motion.
- Until you break in the sensor the needle movement may be unstable
Conditions for the sensor:
1) the O2 sensor is mounted in the factory location and has high exhaust pressure. Set setting to 9.0A/F
ex: vehicles with high EGT, turbo and 4wd vehicles
2) the O2 sensor is mounted father away than the factory location and has high exhaust pressure. Set setting to 11.0A/F
ex: vehicles with lower EGT than ex. 1), turbo and 4wd vehicles
3) the O2 sensor is mounted in the factory location and has low exhaust pressure. Set setting to 13.0A/F
ex: vehicles with lower EGT than ex. 1) and 2), non-turbo and 2wd vehicles
4) the O2 sensor is mounted faher away than the factory location and has low exhaust pressure. Set setting to 15.0A/F
ex: vehicles with lower EGT than ex. 3), non-turbo and 2wd vehicles
Sensor - Vehicle Adjustment
After the wiring is complete, turn on the ignition power, and press hold the select switch on the data link unit for two seconds.
The use the select switch to toggle from the four different adjustments.
- The unit comes preset for 9.0 A/F
- If the outside temperature is below 59degrees F, you should start with setting 13.0 or 15.0
- Because the exhaust temperatur will vary according to the vehicle's specifications and conditions (level of modifications, race vehicle, high boost and exhaust pressure, and high rpm range) you may have to try a different setting to achive a steady needle motion.
- Until you break in the sensor the needle movement may be unstable
Conditions for the sensor:
1) the O2 sensor is mounted in the factory location and has high exhaust pressure. Set setting to 9.0A/F
ex: vehicles with high EGT, turbo and 4wd vehicles
2) the O2 sensor is mounted father away than the factory location and has high exhaust pressure. Set setting to 11.0A/F
ex: vehicles with lower EGT than ex. 1), turbo and 4wd vehicles
3) the O2 sensor is mounted in the factory location and has low exhaust pressure. Set setting to 13.0A/F
ex: vehicles with lower EGT than ex. 1) and 2), non-turbo and 2wd vehicles
4) the O2 sensor is mounted faher away than the factory location and has low exhaust pressure. Set setting to 15.0A/F
ex: vehicles with lower EGT than ex. 3), non-turbo and 2wd vehicles
02-16-2006, 02:12 PM
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Re: Greddy 60mm air fuel gauge instructions
3d. Operation Method
Sensor break in procedure
After installation is complete you must break in the sensor by doing the following. If you do not break in the sensor you may not be able to make the needle stable.
- Warm up the engine and sensor thoroughly by idling.
- Make full throttle run 5-6x for 10 minutes. (Try to raise the O2 sensor to 700degrees C/1290degrees F)
- After you break in the sensor, check to see the needle reads toward the richer side of 14.6A/F when you are in full throttle in fourth or fifth gear.
- After you break in the sensor, check to see when you downshift, as an engine brake, the needle will read toward the leaner side of 14.6A/F
Sensor break in procedure
After installation is complete you must break in the sensor by doing the following. If you do not break in the sensor you may not be able to make the needle stable.
- Warm up the engine and sensor thoroughly by idling.
- Make full throttle run 5-6x for 10 minutes. (Try to raise the O2 sensor to 700degrees C/1290degrees F)
- After you break in the sensor, check to see the needle reads toward the richer side of 14.6A/F when you are in full throttle in fourth or fifth gear.
- After you break in the sensor, check to see when you downshift, as an engine brake, the needle will read toward the leaner side of 14.6A/F
02-16-2006, 02:25 PM
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Re: Greddy 60mm air fuel gauge instructions
3e. Operation Method
Real time mode
The needle will show the current A/F reading
Hold mode
When in real time mode, press the memory switch once, it will cause the memory LED to blink and hold that value. Press again to return to real time mode.
Peak mode
When in real time mode, press the memory switch for over two seconds. It will cause the memory LED to stay illuminated and display the peak (rich) value that was achieved.
Press the memory switch once to reset the peak value.
Hold the memory switch for over two seconds to return to real time mode.
The peak values are never stored in memory. Once you change the mode it is erased.
Set warning mode
To set the warning point, use the provided socket to slightly turn the warning switch. The warning switch will now be in set warning mode.
turn the warning switch to move the needle to the desired warning point. Then five seconds after the last adjustment, the unit will return to real time mode.
Warning mode
The warning is for a rich value. Whenever the needle falls below the warning point, (read too lean) the warning LED will illuminate. When the warning LED illuminates, it also provides a negative signal to the YELLOW wire on the power harness. (this can be used for a optional external warning light, or buzzer.) As the needle raises above the warning point, the warning LED will go out.
Sensor overheat mode
While in real time mode, if the memory LED and warning LED begin to flash ALTERNATELY the unit is in sensor overheat mode.
If this occurs the reading shown will not be accurate.
When the memory LED and warning LED stop flashing, the unit will return to real time mode.
Real time mode
The needle will show the current A/F reading
Hold mode
When in real time mode, press the memory switch once, it will cause the memory LED to blink and hold that value. Press again to return to real time mode.
Peak mode
When in real time mode, press the memory switch for over two seconds. It will cause the memory LED to stay illuminated and display the peak (rich) value that was achieved.
Press the memory switch once to reset the peak value.
Hold the memory switch for over two seconds to return to real time mode.
The peak values are never stored in memory. Once you change the mode it is erased.
Set warning mode
To set the warning point, use the provided socket to slightly turn the warning switch. The warning switch will now be in set warning mode.
turn the warning switch to move the needle to the desired warning point. Then five seconds after the last adjustment, the unit will return to real time mode.
Warning mode
The warning is for a rich value. Whenever the needle falls below the warning point, (read too lean) the warning LED will illuminate. When the warning LED illuminates, it also provides a negative signal to the YELLOW wire on the power harness. (this can be used for a optional external warning light, or buzzer.) As the needle raises above the warning point, the warning LED will go out.
Sensor overheat mode
While in real time mode, if the memory LED and warning LED begin to flash ALTERNATELY the unit is in sensor overheat mode.
If this occurs the reading shown will not be accurate.
When the memory LED and warning LED stop flashing, the unit will return to real time mode.
02-16-2006, 02:30 PM
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Re: Greddy 60mm air fuel gauge instructions
3f. Operation Method
Correction Mode
This mode will normally not be used. This mode is only to be used to adjust the gauge with a professional laboratory spec. A/F monitor. These units are very expensive and accurate.
If there is a large difference in the GReddy A/F gauge and the professional unit, it can be corrected with this mode.
- Correction method: By slightly turning the calibration adjuctment knob on the data link unit, the gauge will go into correction mode.
- The zero point will be 12.0A/F by turning the knob clockwise, will cause the gauge to read richer, and counterclockwise will read leaner.
- The range is from 12.0A/F - 14.0A/F so there is a 2.0 range (in .1 increments) 10 seconds after the last correction of the knob, the unit will return to real mode.
Correction Mode
This mode will normally not be used. This mode is only to be used to adjust the gauge with a professional laboratory spec. A/F monitor. These units are very expensive and accurate.
If there is a large difference in the GReddy A/F gauge and the professional unit, it can be corrected with this mode.
- Correction method: By slightly turning the calibration adjuctment knob on the data link unit, the gauge will go into correction mode.
- The zero point will be 12.0A/F by turning the knob clockwise, will cause the gauge to read richer, and counterclockwise will read leaner.
- The range is from 12.0A/F - 14.0A/F so there is a 2.0 range (in .1 increments) 10 seconds after the last correction of the knob, the unit will return to real mode.
02-16-2006, 02:34 PM
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Re: Greddy 60mm air fuel gauge instructions
3g. Operation Method
Wire Failure Check Function
This function is to alert the user when there is a loose connection, loose wire or missing wiring of the sensor or wiring harness.
- When there is a wire failure, the needle will point straight down at 16.0 and the Warning LED will flash a pattern of two blinks. (the unit will not function at all if the power harness has a failure.)
Short Circuit Check Function
This function is to alert the user when there is a short circuit on the sensor or sensor harness.
- When there is a short circuit, the needle will point straight down to 16.0 and the warning LED will flash continuously. (the unit will not function at all if the power harness has a failure.)
Wire Failure Check Function
This function is to alert the user when there is a loose connection, loose wire or missing wiring of the sensor or wiring harness.
- When there is a wire failure, the needle will point straight down at 16.0 and the Warning LED will flash a pattern of two blinks. (the unit will not function at all if the power harness has a failure.)
Short Circuit Check Function
This function is to alert the user when there is a short circuit on the sensor or sensor harness.
- When there is a short circuit, the needle will point straight down to 16.0 and the warning LED will flash continuously. (the unit will not function at all if the power harness has a failure.)